Could a signal from another world have been kept secret for 40 years? Navigate a strange 3D database and work with other players to piece together what happened. Discuss your way through fragments of found footage films, journals and documentary clips about space.
User reviews:
Mixed (130 reviews) - 65% of the 130 user reviews for this game are positive.
Release Date: Aug 7, 2014

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“A complex story about murder, particles and electronic music.”

“It’s approach to multiplayer gaming feels like a slice of the future.”
Rock, Paper, Shotgun

“One of the first ever online multiplayer story games, where the main gameplay mechanic is not combat -- it's discussion”

About This Game

Cloud Chamber is a Massively Multiplayer story game.

Explore a mysterious 3D database.

Investigate and discuss story fragments with other players.

Piece together what happened from fragments of found footage, secret journals and astrophysics documentary.

In Cloud Chamber, the science is real; the story is fiction, and the truth about Space unknown.

Starring Gethin Anthony (Game of Thrones) and Jesper Christensen (Casino Royale).

The story

Players collaborate with each other to explore, investigate and discuss the fragments of information they collect on their journey through the dataworld, writing the story themselves of a young scientist, Kathleen Petersen, who risks her sanity and betrays her father to save humanity from itself.

Kathleen is forced to choose between loyalty to her father or to betray him and everything she has believed to be true. Her decision will not only determine the Petersen Institute's future, it will impact all of humanity itself.

Was Kathleen's mother Murdered?

Is Kathleen Going Mad?

What Is the Signal?


  • Experience a unique ”found footage” story that combines emails, photographs, maps, diagrams, fiction film, electronic music and documentary films from the European Space Agency into one coherent story.
  • Navigate surreal 3D levels between the parts of the story.
  • Piece together a fragmented story with more 150 story fragments spread over 10 unique levels.
  • Cooperative multiplayer: analyse & discuss the content with other players to understand what happened.
  • Gains access to locked parts of the story by evaluating other players’ theories.
  • Evaluate other players’ explanations; upvote the good, downvote the bad.
  • Make up your own mind: present your theories to other players and get their feedback.
  • Internationally acclaimed actors – Gethin Anthony (Renly Baratheon from Game of Thrones) and Jesper Christensen (Casino Royale, Quantum of Solace).
  • Film fragments filmed by the team behind the original The Killing.
  • More then 30+ movies from the European Space Agency integrated in the storyline.

System Requirements

    • OS: Microsoft Window 7
    • Processor: 1.8Gz Dual Core Processor
    • Memory: 2 GB RAM
    • Graphics: DirectX 9 compliant video card with Shader model 3.0 support. Radeon R7 240 2GB or NVIDIA GT 630 2GB
    • DirectX: Version 9.0
    • Network: Broadband Internet connection
    • Storage: 5500 MB available space
    • Sound Card: Integrated
    • Additional Notes: Cloud Chamber uses QT Lite, which should auto install with the game.
    • OS: Microsoft Windows 7
    • Processor: 2.4 Gz Quad Core Processor
    • Memory: 4 GB RAM
    • Graphics: DirectX 9 compliant video card with Shader model 3.0 support. Radeon HD6850 or NVIDIA GeForce GTX 460
    • DirectX: Version 9.0
    • Network: Broadband Internet connection
    • Storage: 5500 MB available space
    • Sound Card: Integrated
    • Additional Notes: Cloud Chamber uses QT Lite, which should auto install with the game.
Customer reviews
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Mixed (130 reviews)
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103 reviews match the filters above ( Mixed)
Most Helpful Reviews  Overall
352 of 392 people (90%) found this review helpful
2 people found this review funny
Not Recommended
33.0 hrs on record
Posted: September 2, 2014
SUMMARY: This game is a carrot on a stick. You will not reach any satisfying conclusion to the story. A big deal for a completely story driven game.

I have played this for more than 30 hours, unlocked and viewed all content, was active on the discussions (more of lurker, but had 30+ posts as well). I did not want to review the game till I was sure I'm "qualified" to give an honest review.

I'll first describe how the game works. It's a "massively multiplayer story game" where you access a 3D database that is presented in the form of 10 chapters, each with a sequence of "nodes" for you to investigate, each node containing something to drive the story forward: a video (with human actors), text, portions of documentaries, letters, diary entries, photos, etc, The story revolves mostly around 4 individuals portrayed by human actors and is presented as a Sci-Fi mystery. The multiplayer aspect comes in play in these nodes. Once you're done checking the content of the node, you may choose to participate in discussion with other players. As in a forum, you may post a discussion or reply to an existing discussion of the node. You may also like/dislike individual posts. Liking a post rewards the post's author. In each chapter there are locked nodes accessible only after receiving a certain number of likes. This number increases the deeper you get into the game. This feature encourages players to participate in the discussions to piece together the story.

As to why I cannot recommend the game, there are reasons pretaining to the story and there are technical reasons. In regards to the story, it starts pretty strong and you feel that you want to find out where it will all lead. Very positive first impression. Unfortunately, with every passing chapter, the story grew more cryptic, secrets were piled upon secrets and nothing was resolved with clarity. The biggest revelations usually come in the video clips with the human actors, however those are aren't very common and it's aggravating when you finally reach a video node and discover that it's the same video you saw in the last chapter, with a few more seconds added in that have no real bearing, nor provide any revelation.

You will spend hours agonizing over blurred photos, spliced video frames and cryptic doodles, all because you think that a revelation is just around the corner, but you only get buried deeper and deeper into the mystery. It just feels like the authors threw a bunch of cool ideas together and presented it to their audience, thinking their audience will be satisfied filling in the gaps. I don't mind a good open-ended story that stimulates discussion, but this is just a skeleton of a story and towards the end of the game major plot points are never resolved. You conclude the game with more questions than answers.

As to technical issues, the game prouds itself on its innovation and creating this new format of storytelling. I do commend them for it and I appreciate it when developers come up with new ideas in the increasingly saturated games market. However, the format is broken. It can be fixed, and I believe it can work, but in its current form it is broken:

1) Discussions are mandatory to unlock content. That's really cool, it makes people participate. However, by the time you'll probably play it, most of the nodes have been discussed to death. There is nothing useful you can add. You will struggle to find something of value to say, yet you do have to say something if you want to unlock content.

2) Liking AND disliking both unlock content! This is probably a bug, but IMO it is a major bug. It allows trolls to spout aggravating posts which people will dislike (helping the troll unlock content) while thoughtfull well-writted posts get buried.

3) There is an activity feed that gives you notifications when people like a post of yours, comment on a post you liked, reply to your discussion, etc. This feed is broken. It only allows you to see about 15 notifications, the rest won't load and thus you will not find out what people replied to you. This is in a game that focuses on discussion as a primary form of gameplay. I have reported this (and players) to the developers, but nothing was done about it.

EDIT: Point #3 was addressed (19.09.14)

I was honestly enjoying it up till around the middle. Towards the end I felt the excitement fizzle out of myself and fellow investigators (you will see familiar names as you progress). All the investigations we did never really got us to anything concrete and nobody can claim to know what the story is really about, it is just theories at this point.

My suggestion to the developers is to fix the technical issues and rethink some of the social aspects in this game and come back with a story that actually has a plot, climax and ending. They are on to something with this idea, they are just not there yet.
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198 of 255 people (78%) found this review helpful
1 person found this review funny
6.0 hrs on record
Posted: August 7, 2014
Cloud Chamber is a strange beast, it’s an ARG (Alternate Reality Game, for those that don't know) that isn't an ad campaign about strange signals coming from someplace unknown. It focuses on a fictional laboratory in Denmark and the daughter of the institute director in her search about her mother's past and her research in strange phenomenon that ended with her death. Gameplay is watching videos and reading documents and discussing them with other players in the in-game message boards. There is an upvote system and helpful discussion is meant to be rewarded. The acting does its job, the actors are definitely not 90’s FMV tier, but it’s not exemplary. The story itself is interesting enough and any of the possible reasons behind everything are potentially interesting and not pants on head stupid.

There are flaws in the execution though. You're gated off of content due to the upvote system, you need certain amount of upvotes to access them and you're not guaranteed upvotes, especially because people tend to have already asked good enough questions. The other big potential flaw is that if you don't get into this game now, you will most likely miss out on everything. Seeing is that an ARG is all about the mystery once the community solves it, it’s essentially over. (It hasn't yet though) So I really don't see this game having real lasting appeal to make it to a Steam Sale, could be wrong though.

Overall I enjoyed the experience, though it’s definitely not for everyone and it’s not a mind-blowing must play game or anything. I do appreciate that the devs tried to do something different when it comes to game narratives, even if it have its flaws. I recommend it for people that are up for something different and unique, but as I said I have a feeling this game will lose its impact before a sale rolls around unless the devs actively update it with more material, so I don’t think a lot of people would be interested. Still worth getting into now though.
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54 of 59 people (92%) found this review helpful
1 person found this review funny
Not Recommended
44.7 hrs on record
Posted: October 15, 2015
I premise that I have finished the games and I have put 30+ hours into it. Secondly, my advice is to stay away from this game. Let me explain why in this review.

The idea behind this game is very interesting: a game that challanges you to solve a mistery digging through pieces of documents, videos and pictures, cooperating with the other players.
Unfortunately, the realization of this concept is very disappointing and poor, and the gaming experience is not immersive at all.

The big fault of this game is that it is completely passive. You'll only have to read/watch the information presented to you and make your theory on the case. Unfortunately the truth is not revealed at the end, therefore you'll only be left just with a bunch of theories. Not rewarding at all.

The only bit of interaction in the game is due to the fact that not all the information is available. To unlock some documents/videos you have to write comments and hope that the other players upvote them or reply to them.
This mechanism is completely and utterly a poor idea, for multiple reasons:
1) It doesn't matter if the comment is useful or not, so what's the point of it?
2) There are ZERO active players, which means that there is no way to unlock that information. In other words, you'll pay for a game for which you can't access a good chunck of content (Pay not to play)!

It would have been much better if the developers had introduced enigmas to be solved in exchange of the locked information. This would have been more fun and it would have allowed players to 1) cooperate productively to solve the enigmas or 2) to be able to unlock the information even playing alone.

In the end, I wouldn't even call this a game.
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151 of 223 people (68%) found this review helpful
3 people found this review funny
33.1 hrs on record
Posted: August 7, 2014
From the beginning Cloud Chamber has introduced me to a new form of gaming, it's an immersive play style that captivates its players into an intelligently designed world. The community as a whole is great, I doubt you will find many other communities that present themselves to be this "unified" and who have achieved so much in such a brief time.

The developers (Investigate North Aps) have expressed a keen interest in involving themselves within the community, to the benefit of improving the game, through integrating the thoughts and ideas of community members. I was surprised that the development team did work so effectively and efficiently in such a short time to overcome any quandaries that community members have faced and have already began to make improvements to Cloud Chamber.

The creative team behind all this is also very active within the community, answering questions, discussing improvements. I have found that they are not only working for the progress of the game, but also express an extremely friendly and dedicated passion towards the entirety of the community.
Investigate North have proven that they are not money orientated nor avaricious, I truly get the feeling that they want to please us in any way or form they can and believe me, they do.

The game can be slow or fast-paced, it can be tailored to your play style, and it's whatever you make it. For instance whenever I find a new clue, I'll drown myself into research about said clue, while others go through it at a much faster pace, you can play this game the way you like. That being said I find that the game urges me to play more and more as I progress, as with this type of game you would believe that it can become repetitive, however through every single event of playing Cloud Chamber, I have felt that the story has only pulled me in deeper and deeper.

Personally I stopped reading comments from other players, first I write my own speculations down and only after that I start reading what other players have to say. Which is often jawdropping due to the higher levels of intelligence I have witnessed within the community. I have witnessed that everyone has their own unique way of developing and concluding the ideas and evidence they have found from the events within Cloud Chamber, not only this, but I find that it is beneficial being able to compare and contrast my ideas with that of others, making the communal aspect of Cloud Chamber an integral but also distinctive part of the game.

This is not your average gaming experience, trolls, racism and swearing do not exist here, instead Cloud Chamber pertains to a much more mature audience, in which I can work together with people who also want to dedicate themselves to an enhanced gaming experience. That's something I rarely see in any type of game and it's what sets Cloud Chamber a universe apart(pun intended) from the rest.

In the end I'd like to suggest this game to any person that likes to think, re-think and think some more. Space enthusiasts, Indie lovers, sci-fi fans, fantasy geeks, daydreamers, philosophers and just most gamers in general are up for a treat with this little gem.

Storyline (so far) 9/10 (I'd love to give a 10, but there's always room for improvement in any game).
Graphics/Visuals 8/10 Original, never seen anything quite like it.
Audio 8/10 It's either your taste or it isn't, nonetheless it's great and really adds to the experience.
Community 9/10 As mentioned before, the community is one of the best I've ever encountered.
Innovation 10/10 For an Indie developer to take such "risk" shows balls, and it turned out they've put their money on the right bet.

As a last note, the game requires Quicktime (mentioned on the storepage) which many people didn't realize.
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39 of 48 people (81%) found this review helpful
1 person found this review funny
16.9 hrs on record
Posted: March 19, 2015
I put 16 hours into this game and I greatly enjoyed it. I'm going to give it a thumbs up because I think it's good, but I actually DON'T recommend it to new players...

First of all, what exactly is Cloud Chamber? Well it's really more of story than a game. The story is told over 10 chapters, each of which contain a series of story nodes. Each node could be a video clip (uses real actors - Renley Baratheon from Game of Thrones is one of the lead characters!), photographs, transcripts etc.

One of the things that is quite unique is in the way these nodes are delivered. In each chapter you traverse this odd sci-fi landscape going from node to node and it isn't linear. Two players are unlikely to take the same course through the game. Thus what gets delivered is little snippets of the story out of order and you find yourself trying to piece together the timeline and that's what makes it interesting and makes you want to keep going to find out what happened.

Also, another thing I have to mention is the soundtrack - it's superb. It's different in each chapter and it just merges in with the game so well really giving it a great atmosphere.

But here's the problem... in each chapter only around 2/3 of the story nodes are actually available at the start. In order to unlock the rest and thus get the full story you need to interact with other players. This works rather like a social network such as Facebook. Each story node has an attached discussion area where you comment on the node, rate up others comments, reply and so on. But in order to unlock the hidden nodes you need to get a certain number of likes / comments from other players per chapter.

This wouldn't be a problem if it was an active game but it isn't any longer. I got Cloud Chamber in a bundle around a month ago and at that time there were quite a few players and plenty of discussion. But I took my time and now, some weeks later, by the time I got to the final chapter there were just 2 active players on that chapter. We were messaging each other, replying to each others comments just so we could get through it and this felt somewhat artificial.

Having said that, yu can still get a large part of the story from the unlocked nodes. You could play through from chapter 1 -10 completely ignoring the social stuff in probably an hour or two and you wouldn't be missing that much. In a few of the later chapters the locked nodes were actually very disappointing; they used a lot of clips from science programs and it started to feel like I was back in school. This felt like low value filler content.

Finally, the ending. I won't spoil it of course but I finished the game feeling unsatisfied. As I went through the final nodes I was thinking "is this it?", and it didn't feel finished. Many questions were left unanswered which was quite frustrating.
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72 of 111 people (65%) found this review helpful
8.0 hrs on record
Posted: August 7, 2014
Okay I am really noy sure where to start here. If it would be a (short) movie and i would have seen it in cinema or on TV then it would be a good movie. After the end I am still not entirely sure about what happened but I think thats up for everyones own interpretation. I would call it a science mystery thriller.

The whole "game" has 10 chapters and in each chapter are about 5 to 15 parts of movie, pictures and writings each which gives clues to the story and unfold it more and more as you go through it. Some parts are locked though. For every part there is a comment function and players can leave comments which can be up or downvoted by other players. You can sort the comments by latest comments and most upvoted. You can unlock the locked parts if you get your comments upvoted, which I think is a downside. I left plenty of (I think) good comments and haven't unlocked any of the "hidden" parts yet.

I can only recommend this adventure though. It leaves me with something only few movies do, to think about it afterwards and what all that means. I am inclined to go through it all again to see if I can find clues I haven't noticed before. Maybe there is something like a definite answer to the question which keeps me hooked in this adventure, maybe I haven't found it out yet. But I think it may be deliberate to leave questions unanswered.

Pro: - Good actors which have an amateur touch to it which makes everything more believable instead of pro actors
- Well written story with a neat amount of science accurancy and a big mystery feel to it
- comment/upvote function to unlock "hidden" parts

Con: - comment/upvote function to unlock "hidden" parts
- relatively short
- a few parts are hard to navigate to/click on
- potential spoilers in ingame comments
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19 of 22 people (86%) found this review helpful
21.2 hrs on record
Posted: November 15, 2014
Well, geez... where to begin? I'm not so sure I would even consider this a game so much as a social media experiment in the form of an interactive sci-fi thriller. It definitely has the feel of an old-school FMV combined with a mysterious set of nodes, following your progression in each 'part' of the game. The experience was pretty engaging, and I was always looking to 'connect the dots' when posed with a lingering cliffhanger (to which there are many). If anything, Cloud Chamber is certainly ambitious for what it tries to accomplish, and for the most part, it succeeds. Having said this, I could really do without the social media aspect of the game. Granted, it's a cool addition to encourage a sense of community in trying to piece everything together, but here's where it falls apart (in my opinion)... parts of the game will not be available to you unless you take a very active role in the 'mini forums' I'll call them. And even then, there's no guarantee people will 'like/agree' with what you have to say, thus not allowing you to view some locked content. Bummer if you ask me. I think participation alone should be the defining factor here, but what do I know? Anywho, enough about that. Overall, the 'game' was enjoyable, and it got me thinking about 'big' things (hint, hint) that have real world meaning... almost eerily so. 3.5/5
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32 of 46 people (70%) found this review helpful
9.9 hrs on record
Posted: August 10, 2014
I've become obsessed with this game. The conspiracy! The theories! The mystery! The... *garbled sounds, distorted voices saying unintelligible things*... murder? *bzzztflktktk*

The community is great, so far no jerks trying to spoil everything, and the format works very well... much better than I'd expected. The only thing missing is an in-game web browser because it would be nice not to have to leave the game environment in order to research some of the things that come up (and no you don't HAVE to research anything... but it's more fun that way).

I can't wait for a season 2.
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17 of 21 people (81%) found this review helpful
1 person found this review funny
10.8 hrs on record
Posted: August 10, 2014
Uncomparable, indescribable
This game is uncomparable in the form that it doesn't look like any other game.
But it's good!!!
This is a game that need to be experienced, because it isn't possible to formulate how it workes.
It's not an average game and you need to use your intellect when your'e playing.
I really don't understand why a game like this haven't been made before but Im happy that its made in Denmark by a danish company, and i think that especially schoolpupils who's mother tungue isn't English (like me) will be boosted through this game because the game activates your brain, explains some astrophysics and forces you to express yourself in English in a extremely fun way.
This game is full pros unlike many other games because you get something in return else than entertainment.

This is a game everyone should try and it is woth both time and money.

Valentin Marcus Andersen
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23 of 32 people (72%) found this review helpful
4.4 hrs on record
Posted: August 9, 2014
Dislaimer: review copy submitted by the developer.

Cloud Chamber is unique. Hella unique. It's a sci-fi mystery that all the players work to unravel together. You go through looking at pieces of data and discuss the files as you uncover more about the world. It's like an alternate reality game, but one having nothing to do with marketing.
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Recently Posted
Mongoloid Mike
2.4 hrs
Posted: September 4
Unplayable by the time I got it and the game was already over
Helpful? Yes No Funny
3.5 hrs
Posted: August 12
I got this game on a bundle many months ago and never played it back then. In July 2016 I was able to log into the game and play. Basically watcth the videos, read and write some posts. After a few days no one voted up my comments so I couldn't unlock the videos that require your comments to be upvoted. And a few days later I could not log into the game and have not been able to play ever since.
I can not recommend a game that does not work.
Helpful? Yes No Funny
1.8 hrs
Posted: June 10
Is this a game or just a social media?
Helpful? Yes No Funny
2.3 hrs
Posted: April 8
As of February 2016, this game appears abandoned and dead. Accounts don't connect on startup and devs offer no support to the numbers of people who seem to have the same problem. Sounds like an interesting concept, but sadly unplayable.
Helpful? Yes No Funny
4.6 hrs
Posted: March 4
A very interesting game. You get a female and her future reverse harem investigating her mother's research and reproducing it in order to move on to the next step. You watch videos, look at draws and scribbles to give clues about the big picture and for character building. Bewar on ltting your kids play this science mystery game as it has a sex scene in it.

However, a lot of the content is locked behind the social features of the game, where in order to get the juicy stuff you need to partcipate in the comments section and get either a response or like from other users, seeing as the community is dead, play this with a friend at the same time so you can get the good stuff.

This game has made me think about the universe at large. For what you get, the game should be much cheaper though. Recomend picking up during a steam sale or humble bundle.
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Emerald Skyy
4.6 hrs
Posted: December 20, 2015
Interesting idea, but it doesn't work.
Helpful? Yes No Funny
7.1 hrs
Posted: November 28, 2015
This game looks very fancy.
The only problem is you can not start the game!!!
Helpful? Yes No Funny
21.5 hrs
Posted: November 4, 2015
Only downfall is the lack of player base. That and sometime a bit cheesy acting, but what do you expect... :) But other than that, it is unique experience and you can also learn a thing or two from it. Highly recommended for geeks and music enthusiasts. If you believe that there is more to it, then just simple melodies, then this game is just for you.. :) Also, there is Renly Baratheon.. :D
Helpful? Yes No Funny
22.6 hrs
Posted: September 6, 2015
This game is without a doubt one of the most fun experiences I've had. The community aspect of it is just phenominal.
Helpful? Yes No Funny